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I would suggest no, if you really want one just buy the basic version, if your happy with it you can always put a Moonlight focuser on it later on. And as casstony has noted, colour fringing or bloat is a given in the ED150 duplex objective, and there is plenty written on this in the Cloudy Nights forum threads where it has been discussed. Consider the discounting now bring offered to move these scopes, which indicates to me there are not many buyers around. I was originally wait listed for them when Skywatcher first announced them, but their unwillingness to disclose the glass used in the objective, convinced me to drop off the list. There are 150mm triplets around at a reasonable cost, which imho, are a better long term investment and do not cost that much more.
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